Update README.md [ci skip]

README.md

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 # Feign makes writing java http clients easier
 
 [![Join the chat at https://gitter.im/Netflix/feign](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Netflix/feign?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Build Status](https://travis-ci.org/Netflix/feign.svg?branch=master)](https://travis-ci.org/Netflix/feign)
+
 Feign is a java to http client binder inspired by [Retrofit](https://github.com/square/retrofit), [JAXRS-2.0](https://jax-rs-spec.java.net/nonav/2.0/apidocs/index.html), and [WebSocket](http://www.oracle.com/technetwork/articles/java/jsr356-1937161.html).  Feign's first goal was reducing the complexity of binding [Denominator](https://github.com/Netflix/Denominator) uniformly to http apis regardless of [restfulness](http://www.slideshare.net/adrianfcole/99problems).
 
 ### Why Feign and not X?
@@ -463,4 +465,4 @@ interface GitHub {
                 .target(GitHub.class, "https://api.github.com");
   }
 }
-```
+```